Pith Number

pith:6URJUGI6

pith:2015:6URJUGI6GAN5NSEQE2F2SF6V34

not attested not anchored not stored refs pending

Gas flow in barred potentials II. Bar Driven Spiral Arms

James Binney, John Magorrian, Mattia C. Sormani

arxiv:1504.04807 v2 · 2015-04-19 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6URJUGI6GAN5NSEQE2F2SF6V34}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:07:26.286858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5229a191e301bd6c890268ba917d5df1673b5b5b1082e0e6343d867c22b83a0

Aliases

arxiv: 1504.04807 · arxiv_version: 1504.04807v2 · doi: 10.48550/arxiv.1504.04807 · pith_short_12: 6URJUGI6GAN5 · pith_short_16: 6URJUGI6GAN5NSEQ · pith_short_8: 6URJUGI6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6URJUGI6GAN5NSEQE2F2SF6V34 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f5229a191e301bd6c890268ba917d5df1673b5b5b1082e0e6343d867c22b83a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "406bb31a20668c1ab1279b2d6db867ff08fea3bf4c9be039883cebf255bb5113",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-19T07:54:05Z",
    "title_canon_sha256": "acfe64d7fe013094618721d87b8fe4813a0c2e64c9407b24e98b438536d64216"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04807",
    "kind": "arxiv",
    "version": 2
  }
}